TPS92692-Q1: TPS92692 ILED

Takeshi Matsuzaki

Part Number: TPS92692-Q1

Tool/software:

I have a question about the tps92692-Q1.

When setting the output current, the datasheet says to use

ILED = VIADJ / (14 *RCS).

And I understand that VIADJ can be calculated as

VIADJ = RADJ1 / (RADJ1 + RADJ2) * VREF

・ Can I consider ILED to be based only on the accuracy of the external components RADJ1, RADJ2, and RCS?

・ Can I consider VREF to be built in to 4%?

Best Regards,

0 Daniel Louis over 1 year ago

-Can I consider ILED to be based only on the accuracy of the external components RADJ1, RADJ2, and RCS?

*Yes

-Can I consider VREF to be built in to 4%?
* Here is the expected voltage range for VREF

and VREF vs Junction Temp

0 Takeshi Matsuzaki over 1 year ago in reply to Daniel Louis

Thanks,

Is this calculation correct?(including part precision)

First step

VIADJ = RADJ1[±1%] / (RADJ1 [±1%] + RADJ2[ ±1%]) * VREF[±4%]

Second step

ILED = VIADJ / (14 *RCS [ ±1% ])

* VIADJ is the value of Fisrt step.

Best Regards,

0 Daniel Louis over 1 year ago in reply to Takeshi Matsuzaki

You got it!

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